> Or perhaps write a complier for a new language that someone just invented, after writing a first draft of a spec for it.

Hello, this is what I did over my Christmas break. I've been taking some time to do other things, but plan on returning to it. But this absolutely works. Claude has written far more programs in my language than I have.

https://rue-lang.dev/ if you want to check it out. Spec and code are both linked there.